cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A107591 G.f. satisfies: A(x) = Sum_{n>=0} x^n * A(x)^(n*(n+1)/2).

Table of values

n a(n)
0 1
1 1
2 2
3 6
4 22
5 91
6 408
7 1939
8 9635
9 49614
10 263140
11 1431301
12 7959568
13 45152340
14 260847526
15 1532825675
16 9154581802
17 55537885743
18 342147577227
19 2140251570508
20 13594688301758
21 87702596534110
22 574815620158265
23 3829029514213952

List of values

[1, 1, 2, 6, 22, 91, 408, 1939, 9635, 49614, 263140, 1431301, 7959568, 45152340, 260847526, 1532825675, 9154581802, 55537885743, 342147577227, 2140251570508, 13594688301758, 87702596534110, 574815620158265, 3829029514213952]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement.